[PATCH] doc: lei-rm: remove unnecessary -F values

[Eric Wong <e@80x24.org>]

-F is really only useful for distinguishing between mbox
variants and single message/rfc822 files.  URLs and
directory-based formats can be auto-detected easily enough.
---
 Documentation/lei-rm.pod | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/Documentation/lei-rm.pod b/Documentation/lei-rm.pod
index f2a0c0f046e1..67bfb5510d63 100644
--- a/Documentation/lei-rm.pod
+++ b/Documentation/lei-rm.pod
@@ -34,10 +34,13 @@ the command-line.
 
 =item --in-format=MAIL_FORMAT
 
-Message input format: C<eml>, C<maildir>, C<imap>, C<imaps>, C<nntp>,
-C<nntps>, C<mboxrd>, C<mboxcl2>, C<mboxcl>, or C<mboxo>.
+Message input format: C<eml>, C<mboxrd>, C<mboxcl2>, C<mboxcl>, or C<mboxo>
+when reading from stdin or using one of the mbox variants.
 
-Default: C<eml> when reading from stdin
+Not necessary when using an IMAP URL, NNTP URL or Maildir.
+
+Default: C<eml> when reading from stdin or if the file suffix
+ends in C<.patch> or C<.eml>.
 
 =item --lock=METHOD